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bsps/arm: Fix for top of the address space

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This commit is contained in:
Ric Claus
2013-07-17 10:13:34 +02:00
committed by Sebastian Huber
parent 691e0eff5d
commit 3923472555
2 changed files with 6 additions and 4 deletions
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c/src/lib/libbsp/arm/shared/arm-cp15-set-ttb-entries.c
+3 -2
View File
@@ -24,6 +24,7 @@ static uint32_t set_translation_table_entries(
uint32_t *ttb = arm_cp15_get_translation_table_base();
uint32_t i = ARM_MMU_SECT_GET_INDEX(begin);
uint32_t iend = ARM_MMU_SECT_GET_INDEX(ARM_MMU_SECT_MVA_ALIGN_UP(end));
uint32_t index_mask = (1U << (32 - ARM_MMU_SECT_BASE_SHIFT)) - 1U;
uint32_t ctrl;
uint32_t section_flags_of_first_entry;
@@ -31,12 +32,12 @@ static uint32_t set_translation_table_entries(
arm_cp15_tlb_invalidate();
section_flags_of_first_entry = ttb [i];
while (i < iend) {
while (i != iend) {
uint32_t addr = i << ARM_MMU_SECT_BASE_SHIFT;
ttb [i] = addr | section_flags;
++i;
i = (i + 1U) & index_mask;
}
arm_cp15_set_control(ctrl);
c/src/lib/libbsp/arm/shared/include/arm-cp15-start.h
+3 -2
View File
@@ -62,11 +62,12 @@ arm_cp15_start_set_translation_table_entries(
uint32_t i = ARM_MMU_SECT_GET_INDEX(config->begin);
uint32_t iend =
ARM_MMU_SECT_GET_INDEX(ARM_MMU_SECT_MVA_ALIGN_UP(config->end));
uint32_t index_mask = (1U << (32 - ARM_MMU_SECT_BASE_SHIFT)) - 1U;
if (config->begin != config->end) {
while (i < iend) {
while (i != iend) {
ttb [i] = (i << ARM_MMU_SECT_BASE_SHIFT) | config->flags;
++i;
i = (i + 1U) & index_mask;
}
}
}